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根據百分率找數量（二）: 例1的副本
Author:
音节-Lisa
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
畫出對稱圖形
錐體建築師
三位數除以一位數（一）
異分母分數減法
算柱 (兩位數)
Discover Resources
Venn diagram
Circumcentre
內擺線
hkdse 2014 by mr lo wy
圓周_心算題03
Discover Topics
Arithmetic Mean
Standard Deviation
Parabola
Combinatorics
Differential Calculus